can perceive
Verbo regular: perceive - perceived- perceived

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I can perceive
you can perceive
he can perceive
we can perceive
you can perceive
they can perceive 	I can be perceiving
you can be perceiving
he can be perceiving
we can be perceiving
you can be perceiving
they can be perceiving	I can have perceived
you can have perceived
he can have perceived
we can have perceived
you can have perceived
they can have perceived	I can have been perceiving
you can have been perceiving
he can have been perceiving
we can have been perceiving
you can have been perceiving
they can have been perceiving	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I cannot perceive
you cannot perceive
he cannot perceive
we cannot perceive
you cannot perceive
they cannot perceive 	I cannot be perceiving
you cannot be perceiving
he cannot be perceiving
we cannot be perceiving
you cannot be perceiving
they cannot be perceiving	I cannot have perceived
you cannot have perceived
he cannot have perceived
we cannot have perceived
you cannot have perceived
they cannot have perceived	I cannot have been perceiving
you cannot have been perceiving
he cannot have been perceiving
we cannot have been perceiving
you cannot have been perceiving
they cannot have been perceiving	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can I perceive?
can you perceive?
can he perceive?
can we perceive?
can you perceive?
can they perceive? 	can I be perceiving?
can you be perceiving?
can he be perceiving?
can we be perceiving?
can you be perceiving?
can they be perceiving? 	can I have perceived?
can you have perceived?
can he have perceived?
can we have perceived?
can you have perceived?
can they have perceived? 	can I have been perceiving?
can you have been perceiving?
can he have been perceiving?
can we have been perceiving?
can you have been perceiving?
can they have been perceiving? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can I not perceive?
can you not perceive?
can he not perceive?
can we not perceive?
can you not perceive?
can they not perceive? 	can I not be perceiving?
can you not be perceiving?
can he not be perceiving?
can we not be perceiving?
can you not be perceiving?
can they not be perceiving? 	can I not have perceived?
can you not have perceived?
can he not have perceived?
can we not have perceived?
can you not have perceived?
can they not have perceived? 	can I not have been perceiving?
can you not have been perceiving?
can he not have been perceiving?
can we not have been perceiving?
can you not have been perceiving?
can they not have been perceiving?